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Document ID (ISN)51310
CIS number 89-582
ISSN - Serial title 0016-9765 - Giesserei
Year 1988
Convention or series no.
Author(s) Haub H.G., Mühlhauser S., Müller F.J., Gardziella A.
Title Emissions from heat treatment of shell moulding compounds - Interferences at the measurement of formaldehyde
Original title Emissionen beim Aushärten von Maskenformstoffen - Querempfindlichkeiten bei der Bestimmung von Formaldehyd [in German]
Bibliographic information Mar. 1988, Vol.75, No.6, p.154-159. Illus. 15 ref.
Abstract Formaldehyde emitted during heat treatment of phenolic resin containing hexamethylenetetramine was measured by colorimetric methods using the following reaction agents: sulfite-pararosaniline, MBHT (3-methyl-2-benzothiazolone-hydrazone-hydrochloride), AHMT (4-amino-3-hydrazino-5-mercapto-1,2,4-triazole) and acetylacetone. The stain tube for formaldehyde was tested as well. Interferences by hexamethylenetetramine occurred with all reagents excepting AHMT.
Descriptors (primary) formaldehyde; foundries; sampling and analysis; shell moulding
Descriptors (secondary) phenol-formaldehyde polymers; colorimetry; interferences; determination in air
Document type D - Periodical articles
Subject(s) Metal production and metalworking
Broad subject area(s) Chemical safety
Browse category(ies) Aldehydes
Foundries, metalcasting and forging operations